The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 09, 1996
Filed:
Jan. 17, 1995
Applicant:
Inventor:
Dennis J Warwick, Richfield, MN (US);
Assignee:
Data Card Corporation, Minnetonka, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360119 ; 360128 ;
Abstract
A read/write head is used with high coercivity and low coercivity magnetic stripe in multiple-track applications. The read/write head includes a plurality of inductively wound read/write gapped cores with a recessed core gap structure, and further includes a shield situated between the cores, such that a non-magnetic space is formed between the shield and each adjacent core. The width of the shield is no greater than the width of the non-magnetic spaces.